From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: Xen4.2 S3 regression? Date: Thu, 27 Sep 2012 08:46:52 +0100 Message-ID: References: <50641E86020000780009E2E3@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <50641E86020000780009E2E3@nat28.tlf.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich , Ben Guthro Cc: John Baboval , xen-devel List-Id: xen-devel@lists.xenproject.org On 27/09/2012 08:38, "Jan Beulich" wrote: >> [ 37.420030] PM: Restoring platform NVS memory >> (XEN) microcode: collect_cpu_info for CPU0 >> (XEN) microcode: collect_cpu_info : sig=0x10676, pf=0x80, rev=0x60c >> (XEN) microcode: collect_cpu_info for CPU1 >> (XEN) microcode: collect_cpu_info : sig=0x10676, pf=0x80, rev=0x60f > > And in the end we see that both cores run on different revisions. > > The mixup of Xen and Dom0 messages puzzles me too - in my > understanding, all APs should be brought back up before > domains get unpaused. Ah, of course! This makes a nonsense of my explanation of the observed crash in _csched_cpu_pick -- dom0 cannot be running while Aps are still being brought back online, because domains are not unpaused until all CPUs are back online. So it's a mystery again. :) -- Keir > Is that perhaps part of your problem > with pinned vCPU-s? Or is the mixup not indicative of things > actually happening in parallel? > > Jan > >> [ 37.431008] Enabling non-boot CPUs ... >> [ 37.434851] installing Xen timer for CPU 1 >> [ 37.439031] cpu 1 spinlock event irq 279 >> [ 37.327214] Disabled fast string operations >> [ 37.458040] CPU1 is up >> [ 37.465417] ACPI: Waking up from system sleep state S3 > > >